he said that they would build a bridge. 中间为什么用that链接

he said that they would build a bridge. 中间为什么用that链接 would是情态动词吗?He said that it would be possible to build a pla He said that it would be possible to build a platform in the He said that it would be p_____ to build a platform in the c He said that it would be________(possible)to build the talle 1 He said they would have （ ）bridge （ ）. 英语翻译He said,"I believe that we can build China into a strong They helped build part of a railroad that would cross the Un "He said that they must work hard."为什么这句话用了过去式? He said that he ____(ring) me up when he got there为什么是would They said it was such a fine day that they would rernenber i He said that if he had a million dollars ,he would give it t